China Tun Seashells – White & Brown Tonna chinensis / Tonna sulcosa for Coastal Decor & Collections (3–4.5 inches)
Large Tun Shells | Natural Brown-Striped Sea Shells | Ideal for Display, Crafts & Wholesale Supply
$1.50
What’s Included
Quantity: Sold individually or in bulk
Size Range: Approx. 3-4.5 inches (≈ 7.6–11.4 cm)
Shell Type
Common Name: China Tun Shell / Tun Seashell
Scientific Names: Tonna chinensis, Tonna sulcosa
Family: Tonnidae
Origin
China Tun shells are found in warm Indo-Pacific waters, living on sandy seabeds in deeper coastal environments. Their large size and thin structure develop naturally in calm marine conditions.
Appearance & Natural Features
China Tun shells are prized for:
Large, rounded inflated shell form
Natural white to cream base with brown striping
Lightweight yet impressively sized structure
Smooth surface with gentle spiral ridges
Each shell shows natural variation in striping, tone, and shape, making every piece unique.
Uses & Applications
These large Tun shells are perfect for:
Coastal and nautical home décor
Statement display pieces
Shell collections and educational exhibits
Craft and mixed-media art projects
Retail resale and interior styling
Museum, aquarium, or themed installations
Their size and elegant shape make them ideal as centerpiece shells.
Natural Product Disclaimer
Photos show representative examples, not the exact shell
Natural variations in color, thickness, and surface markings are expected
Minor edge wear or imperfections may occur due to natural ocean conditions
Bulk & Wholesale Orders
We supply China Tun shells and large display seashells to business and professional clients, including:
Interior designers & stylists
Home décor and gift retailers
Museums & educational institutions
Aquariums and themed venues
📧 Email: cyan@seashell-supply.com
💬 Or simply send us a message to discuss your needs.
Every seashell is a gift from the ocean, and I pack each one with the care it deserves, ensuring its safe journey to you.
Preparation Time: I will carefully wrap your seashells in recycled paper and twine within 1-3 business days, making it feel like a personal gift from the sea.
Shipping Method: I use reliable standard shipping and will provide you with a tracking number, so you can follow your shell’s journey.
International Orders: For shells traveling across oceans, please allow a little extra time. Sometimes customs checks can extend their journey.
The ocean never creates two identical shells, making the one you receive truly one-of-a-kind.
Damaged in Transit: If your shell is damaged during its journey, please contact me within 24 hours of receipt with a photo. I will immediately send a replacement or issue a full refund.
Not as Described: I do my best to represent each shell accurately through photos and descriptions. If you feel your shell is significantly different from what was described, please contact me within 7 days, and we will find a thoughtful solution.
A Note on “Change of Mind”: As each shell is a natural, unique item, I cannot accept returns or exchanges due to a “change of mind.” Please review the photos and dimensions carefully to ensure it’s the perfect “ocean companion” for you.
We are deeply committed to sustainable and ethical practices. All our shells are sourced responsibly—never from live-shelled creatures. We support marine conservation efforts and maintain transparency about our sourcing practices.
Tun shells (Tonna species) are known for having some of the thinnest shells relative to their size among large marine snails.
Despite their delicate appearance, they grow very large and use their size and rounded shape as a defense. In life, Tun snails are active predators, feeding mainly on sea cucumbers and marine invertebrates.